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Potassium ferricyanide is the chemical compound with the formula K3[Fe(CN)6]. This bright red salt contains the octahedrally coordinated [Fe(CN)6]3− ion.It is soluble in water and its solution shows some green-yellow fluorescence.
P 2225 (OTTO) Potassium ferricyanide, 99% Cas 13746-66-2 - used in combination with glutaraldehyde and osmium tetroxide for post-fixation of biological samples prior to epoxy embedding.